Kenetrek Unisex Bobcat T-Zip Insulated Boot,Kenetrek,Bobcat T Zip" /> 100% Leather Rubber sole Super thick 6 ounce oil tanned leather uppers are contoured to fit your leg precisely for incredible support and comfort Heavy duty zippers allow for a quick, convenient entrance/exit from the boots A 6 mm thick three part liner, quilted from a wicking durable synthetic, 400 gram Thinsulate Ultra Insulation, and finally 3 mm of wool felt Hand-made rubber outsoles are vulcanized for durability and feature steel shanks with double thick midsoles Traditional tractor-tread outsoles are non-marking and provide footing on wet or dry ground